Nature“What Plants Talk About“ at 7 pm
This program integrates hard-core science with a light-hearted look at how plants behave, revealing a world where plants are as busy, responsive and complex as we are. From the stunning heights of the Great Basin Desert to the lush coastal rainforests of west coast Canada, scientist J.C. Cahill takes us on a journey into the “secret world of plants,” revealing an astonishing landscape where plants eavesdrop on each other, talk to their allies, call in insect mercenaries and nurture their young. It is a world of pulsing activity, where plants communicate, co-operate and sometimes, wage all-out war.

NOVA “Ancient Computer“ at 8 pm
In 1900, a storm blew a boatload of sponge divers off course and forced them to take shelter by the tiny Mediterranean island of Antikythera. Diving the next day, they discovered a 2,000-year-old Greek shipwreck. Among the ship’s cargo they hauled up was an unimpressive green lump of corroded bronze. Rusted remnants of gear wheels could be seen on its surface, suggesting some kind of intricate mechanism. The first X-ray studies confirmed that idea, but how it worked and what it was for puzzled scientists for decades. Recently, hi-tech imaging has revealed the extraordinary truth: this unique clockwork machine was the world’s first computer. NOVA follows the ingenious sleuthing that finally decoded the truth behind the amazing ancient Greek computer.

“Eat, Fast And Live Longer With Michael Mosley” at 9 pm
Michael Mosley has set himself a truly ambitious goal: he wants to live longer, stay younger and lose weight. But he wants to make as few changes to his life as possible along the way. And he thinks he’s found the answer — the ancient idea of fasting. Could the powerful new science behind this idea lead to a longer, healthier life? Mosley thinks he’s found a way of fasting that still allows him to enjoy his food. It sounds too good to be true. So he decides to take a road trip across the U.S. to investigate how a little hunger can make you younger — and of course — to try out some of this new science for himself.